Competing adiabatic Thouless pumps in enlarged parameter spaces
Competing adiabatic Thouless pumps in enlarged parameter spaces
The transfer of conserved charges through insulating matter via smooth deformations of the Hamiltonian is known as quantum adiabatic, or Thouless, pumping. Central to this phenomenon are Hamiltonians whose insulating gap is controlled by a multidimensional (usually two-dimensional) parameter space in which paths can be defined for adiabatic changes in …